baber/WOPTO huggingface dataset:
Patent GB-893808-A (GB)
Title: Rapid photographic developing
IPC: G03D5/00
Filed: 1960-02-15
Abstract: 893,808. Photographic developing processes and apparatus. CONSOLIDATED ELECTRODYNAMICS CORPORATION. Feb. 15, 1960 [Feb. 17, 1959], No. 5232/60. Drawings to Specification. Classes 98(1) and 98(2). A method of rapidly developing a silver halide photosensitive emulsion with an alkaline developer solution containing a thermally unstable ammonium compound and/or a compound which produces an acid gas on heating comprises wetting the emulsion with a film of the developer solution and thereafter heating the wetted emulsion to decompose the ammonium compound and / or produce said acid gas in order to lower the pH of the solution on the emulsion, whereby the developing activity of the solution is decreased. Alternatively, if the alkaline developing solution contains a thermally unstable ammonium compound which decomposes at one temperature and the emulsion is disposed on a support containing or carrying a compound which produces an acid gas on heating to a higher temperature, the method may comprise wetting the emulsion with a film of the developer solution, thereafter heating the wetted emulsion to decompose the ammonium compound and lower the pH of the solution on the emulsion, whereby the developing activity of the solution is decreased, and thereafter heating the support sufficiently to decompose the acid-gas-producing compound. The developing solution may for example contain a mixture of Phenidone and chlorhydroquinone, and the thermally unstable alkali may comprise ammonium hydroxide, a mixture of a thermally stable alkali such as caustic soda or sodium carbonate and an ammonium compound such as ammonium chloride, or a substituted ammonium compound such as the quaternary ammonium hydroxides-for example tetraethyl ammonium hydroxide, tetramethyl ammonium hydroxide, and other in which the hydrogen atoms are replaced by various combinations of methyl, ethyl, butyl, and hexyl groups. The acid-gasproducing compound may comprise a sulphite, sulphate, or carbonate of zinc, tin, lead or mercury-preferably zinc sulphite-or a hydrochloride of a high molecular weight stable organic base such as cyclohexylamine hydrochloride or its higher homologues. The emulsion may, if desired, be wetted with developer before exposure, and if it is intended to keep the recorded information for future reference, the emulsion may later be fixed or stabilized in conventional manner. The Specification also describes and illustrates an apparatus in which a roll of photographic recording paper is fed past an exposure window, through a developing section in which a thin film of developer is applied to the paper, over a heating plate, and finally out of the apparatus for observation. Specification 888,700 and U.S.A. Specification 2,983,250 are referred to.
Patent GB-979931-A (GB)
Title: Improvements in or relating to sound attenuating gas conduit
IPC: F01N1/02
Filed: 1962-02-12
Abstract: 979,931. Exhaust silencers. ARVIN INDUSTRIES Inc. Feb. 12, 1962 [July 10, 1961], No. 5368/62. Heading F1B. An exhaust silencer comprises a conduit 10 containing resonater chambers 24, Fig. 1, formed by a plurality of tubes 12 the closed end 18 of each of which fits within the open end of the adjacent tube leaving passages 22 connecting the resonater space to the conduit. In Fig. 1 the reduced ends 16 of the tubes are a friction fit within projections 20 formed in the open ends, the passages 22 being formed between the projections. The resonant frequencies of the chambers 24 are determined by the extent to which the tubes interfit. In modifications the projections are formed on the ends 16 or are formed outwardly on the open ends. In Fig. 7 the reduced ends 60 are a clearance fit within the open ends 63.
Patent GB-255812-A (GB)
Title: Improvement in pistons and piston rings
IPC: F16J9/20
Filed: 1926-02-25
Abstract: 255,812. McQuay-Norris Manufacturing Co., (Assignees of Mummert, A. J.). July 23, 1925, [Convention date]. Pistons; packing.-An oil-scraper ring of the type having an oil-collecting groove E, has slots F above the groove by which oil passes to the back of the ring and by passages H to the interior of the piston. The passages H may be at the upper or lower end of the packing-ring groove. The upper wall of the groove E may be at rightangles to the cylinder wall, or inclined. The edge of the lower wall of the groove E is clear of the cylinder wall.
Patent GB-1198606-A (GB)
Title: A Process for Producing Minute Polymeric Capsules.
IPC: B01J13/12
Filed: 1969-01-31
Abstract: 1,198,606. Microcapsules. NATIONAL CASH REGISTER CO. 31 Jan., 1969 [28 Feb., 1968], No. 5381/69. Heading B8C. Microcapsules composed of a wall of rigid polymeric material enclosing a particle of core material are made by dispersing the core material, and droplets of the wall material dissolved in a volatile solvent, in a non-volatile, substantially inert organic liquid capable of wetting the core material particles, whereby the polymer solution deposits on and forms liquid walls around the core particles, and removing the solvent therefrom by evaporation. Suitable inert liquids are heptacosafluorotributylamine and a mixture of cyclic ether isomers of formula C 8 F 16 O, B.Pt. 97-107‹ C. Numerous polymers are mentioned including polymers of vinyl-acetate, -chloride, -carbonate, -butyral and -formal, styrene, methyl methacrylate, ethyl- and nitro-cellulose, vinylidene chloride/acrylonitrile, vinyl fluoride/chlorotrifluoroethylene and vinyl chloride/vinyl acetate and the solvent may be acetone, dioxane, toluene, chloroform, CCl 4 , Et-Me ketone, iso Bu-Me ketone, ethyl or butyl acetate, cyclohexane cyclohexanone, tetrahydrofuran or ethylene dichloride. The core material may be solid or liquid, ammonium nitrate being used in the specific examples.
Patent GB-1076501-A (GB)
Title: An open seal for the piston of a rotary piston internal combustion engine
IPC: F01C19/00
Filed: 1965-02-08
Abstract: 1,076,501. Rotary-piston internal combustion engines. TOYO KOGYO KABUSHIKI KAISHA. Feb. 8, 1965 [Feb. 17, 1964], No. 5446/65. Heading F1. An apex seal for the piston of a rotary-piston I. C. engine of the kind having a three or more sided piston planetarily rotatable within a casing having an epitrochoidal inner profile with two or more lobes, comprises a general rectangular body (7), Fig. 2 (not shown) formed with at leastone longitudinal hole (8) and at least one transverse hole (13) extending from the inner face of the seal and intersecting the hole or holes (8) to leave a thickness of material on the outer surface sufficient to withstand the sliding frictional forces between the seal and the casing inner profile. The holes reduce the mass of the seal with consequent reduction in the centrifugal forces and rubbing between the seal and casing. The reduced mass permits the use of materials which are more capable of withstanding the high temperatures and pressures occurring in the engine.
Patent GB-1525546-A (GB)
Title: Electromagnetic continuous casting process for liquid metals with electromagnetic rotation
IPC: B22D11/115
Filed: 1977-02-10
Abstract: 1525546 Electromagnetic stirring INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 10 Feb 1977 [11 Feb 1976] 5569/77 Heading B1C [Also in Division B3] Metal is continuously cast in a chilled mould of electrically conductive material and rotated therein by a magnetic field, rotating at a frequency between 4 and 15 Hz, about the axis of the mould, from the lower end of which the strand is extracted, and the field rotation frequency (angular velocity) value is chosen to give a maximum moment of rotation of the molten metal, considering the size of the casting and the thickness e mm and electrical conductivity γ mhos/m of the mould wall, the value (N opt  Hz) being such that increase in frequency beyond it would cause attenuation of the magnetic field in the mould wall to preponderate and thus the rotation moment to decrease. Fig. 1 shows relationship of optimum field rotation frequency to the product of wall thickness e and electrical conductivity γ of mould, for cast strands of different radii R. The radius R in cm, is that of a round strand or that of a circle tangent to the internal walls of the mould at a cross-section. The optimum rotation frequency can be obtained from graphs like those given in Fig. 1 or from the expression of the curves of the graph. where X=eγ/10<SP>8</SP> and A, B and C are polynomials based on R and which are given. For a given power supply and inductor it would be possible to determine the mould wall thickness and conductivity according to casting size. In order to facilitate collection of extraneous floating matter, at the middle of the meniscus, the speed of rotation of the metal is limited to a minimum field value of- and a maximum field value of-
Patent GB-1382043-A (GB)
Title: Containers
IPC: B65D5/60
Filed: 1971-03-01
Abstract: 1382043 Cigarette cartons TAYLOWE Ltd 1 March 1972 [1 March 1971] 5649/71 Heading B8P A carton formed from the blank shown in Fig. 2, has panels A, B, C, extending across the inside of the front and side panels F, G, H to assist in retaining the lid closed and is also formed with a tear strip 5 and slits 6, the carton has a reclosable fluid-tight liner which may be of metal foil coated on its inner surface with a synthetic plastics material and on its outer surface with paper. The liner is loose with respect to the lid to facilitate its reclosing.
Patent GB-683080-A (GB)
Title: Neutralizing acid associated with wool
IPC: D06M11/76
Filed: 1950-03-07
Abstract: The acid associated with wool is neutralized in a two-stage process by passing the wool into an aqueous soap-free soda ash solution in which the amount of sodium carbonate is insufficient to neutralize all the acid to be neutralized, allowing the neutralization to proceed to the formation of sodium bicarbonate and then utilizing this bicarbonate, e.g. by using a temperature above 120 DEG  F., and below 145 DEG  F., preferably at 140 DEG  F., for neutralizing the acid in further quantities of wool.  Additions of p  soda ash may be made to maintain an alkali concentration equivalent to from 0.15 to 1.0 per cent of sodium bicarbonate, e.g. the additions may be such as to keep the pH value of the solution between 6.8 and 9.0.  A wetting agent is preferably also present.
Patent GB-384853-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B53/00
Filed: 1932-02-25
Abstract: 384,853. Rotary internal-combustion engines. COUSIN, M., 62, Rue Pergolese, Paris. Feb. 25, 1932, No. 5690. Convention date, Feb. 27, 1931. Addition to 282,038, [Class 110 (ii), Rotary engines &c.]. [Class 110 (ii).] The parent Specification describes an engine comprising two or more members moving in one direction and formed with helicoidal elements which co-operate with helicoidal elements on one or more members moving in a direction at right-angles to the former members so as to form enclosed spaces of varying volume. The present Specification describes means to support the chain of elements moving at right-angles to the rotors, by a system of straps some of which are adjustable. In Fig. 1 the chain of elements 201 moving at right-angles to the rotors is supported on an inner set of straps 209 and an outer set 236 which are displaced eccentrically outwards so that in turning around the guide wheels the inner set of straps are shortened and the centrifugal strain is taken by the outer straps. The straps 236 may be duplicated and be threaded over and under the pins supporting the elements 201, one strap crossing another. Fig. 2 shows a means to tighten the straps 209 between the elements 201 (shown by their end pins). A lever 239 is pivoted about a point by moving a bearer 242 in the direction of the arrows f, f<1> to bear upon a roller 241 to slacken or tighten the straps 209. The Specification as open to inspection under Sect. 91 describes spring-pressed packing bars between the casing and the moving elements. This subject-matter does not appear in the Specification as accepted.
Patent GB-642792-A (GB)
Title: Improvements in or relating to utensils
IPC: A47J27/00
Filed: 1948-02-26
Abstract: 642,792. Making hollow-ware. GENERAL ELECTRIC CO., Ltd., RYCROFT, J. L., and SOWTER, A. B. Feb. 26, 1948, No. 5833. [Classes 83 (ii) and 83 (iv)] [Also in Group XI] Jointing by rolling &c ; uniting by fusion.- In making an aluminium, copper, &c. saucepan &c. a bottom casting 1 in which a heating element of the shrouded wire type is embedded and a tabular body portion 2 are positioned after scratch-brushing on an anvil 8 and the lap joint is cold welded by tools 9 moved radially by rockers 15 when a part 13 is depressed by the press. The cold welding may be effected by rollers traversed round the joint. In forming a closed canister a bottom and a top may be cold welded to a side wall member which may have a cold welded seam. Where the side seam joins the top or bottom filler metal may be added. Specification 624,419, [Group XI], is referred to.
Patent GB-543826-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/38
Filed: 1941-05-07
Abstract: 543,826. Sliding clasp fasteners. PLASCO Ltd. May 7, 1941, No. 5912. Convention date, Nov. 29, 1940. [Class 44] In a sliding clasp fastener provided with rubber &c. strips which abut, when the fastening is closed, to give a fluid-tight seal, each. stringer comprises a pair of superposed tapes with the sealing strip 16 disposed between them, the assembly being secured together as by adhesive and stiches 15, 23. The free edges 11, 12 of both tapes are provided with fastener elements 13, 14 simultaneously interlocked by a single slider 22 which may have a locking projection 26 to engage between adjacent elements. The sealing strips have medially disposed flanges 19 providing shoulders which abut against the outer ends of the fastener elements between the tapes. As described, the stringers are separable, one being provided with a pair of pin members 29 mounted on tape edges 11 and secured together by rivets 31. The other stringer has a pair of similarly attached slotted elements 34 into which members 29 may be threaded.' Members 29 have integral fastener elements 32 to co-operate with the fastener elements 33 on the other stringer, and the fastener elements on opposite sides of the sealing strips may be opposite each other as shown, or staggered. The meeting edges of the sealing strips may have tongue and groove engagement.
Patent GB-1491739-A (GB)
Title: Apparatus for monitoring the internal temperature of food in a microwave oven
IPC: A47J37/00
Filed: 1975-02-12
Abstract: 1491739 Measuring temperature electrically GENERAL ELECTRIC CO 12 Feb 1975 [27 Feb 1974] 5948/75 Heading G1N Apparatus for monitoring the temperature of food being cooked in a micro-wave oven is generally as described in Specification No. 1421225 (Division G1) but the probe 70 housing the thermistor 75 is connected to a coaxial line 60-63 to the outer shield 63 of which is coupled a high impedance choke structure 150, the choke is coupled to the cable shield at or near either end of the cable so that the total length of the elctrical path presented by the cable between the choke and the other end of the cable equals approximately an integral number of half wavelengths of the micro-wave frequency whereby in use the cable is non-resonant. So the thermistor is shielded from micro-wave energy. The choke includes between the shield 63 and a cup-shaped member 151, an annular cavity having a length of a quarter wavelength at the oven frequency (915 MHz) which presents a high impedance to the micro-wave energy; whereby the cable 60, the plug receptacle 87 and the indicator circuit, Fig.5 (not shown), are isolated from the microwave energy. Preferably the length D 2  of the cable from the stop 79 to which the probe is inserted in the food to be cooked to the open end of the member 151 equals n half-wavelengths where n is integral. In an alternative embodiment, Fig.4 (not shown), a further quarter-wavelength cavity structure (160) is provided at the cable end adjoining the probe housing, which structure is generally similar to that 150.
Patent GB-248756-A (GB)
Title: Improvements in or relating to a method of and means for grinding polishing or otherwise forming or working spherical surfaces
IPC: B24B19/06
Filed: 1926-03-03
Abstract: 248,756. Aktiebolaget Svenska Kullagerfabriken. March 5, 1925, [Convention date]. Milling - machines.- A spherical surface is formed on a blank by effecting relative rotation between the blank and a tool about an axis through the centre of the surface, and a simultaneous relative rotation about a second axis also passing through the said centre and inclined to the first axis; rotation also is effected about an axis not passing through the centre. As applied to the production of an internal surface 7, Fig. 1, a tool 1 is rotated about its axis 3 and also about a parallel axis 4 passing through the centre of the surface 7, relative rotation between the blank 5 and the tool also taking place about the axis 6 of the blank, the axes intersecting at the centre of the surface. In forming an external surface, the working surface of the tool is concave and the axis 3 lies outside the surface being formed; alternatively, the tool has a working surface corresponding to the surface 7, Fig. 1, and the work occupies the position of the tool 1, the axis 4 intersecting the axis 6 of the work as in Fig. 1. Figs. 3 and 4 show a machine for use as set out above. The tool 1 is carried by a spindle 8, mounted eccentrically in a sleeve 9, which is eccentrically mounted in an outer sleeve 10, whereby the eccentricity of the spindle 8 can be varied. The spindle 8 is rotated by belts 16, 17 with a tightening-device 15 and the sleeve 10 is driven by a chain 14. The work is carried by a chuck 18 carried by an angularly adjustable slide 20 carried by a slide 21; feed is applied by adjustment of the eccentricity of the spindle 8 or by moving the tool axially. Specification 155,339 is referred to.
Patent GB-564932-A (GB)
Title: Combined dust extractor and filter devices
IPC: F02M35/02
Filed: 1943-04-15
Abstract: 564,932. Air cleaners. YOKES, C. G. April 15, 1943, No. 6062. [Class 8 (ii)] The intake air of engines is cleaned and filtered by rapid passage through a duct 2 near a filter screen 6, the air passing through openings between louvres 3, with a sharp backward turn, through the screen to the intake. The heavier dust particles are carried along the duct, the further end of which may be narrowed and fitted with an engine exhaust inlet pipe 5 acting as an ejector nozzle. A fan 1 may blow the air into the duct. The louvres may be curved to reduce eddying.
Patent GB-1493959-A (GB)
Title: Window construction
IPC: E06B1/34
Filed: 1975-02-13
Abstract: 1493959 Window frame J S JOHANSEN 13 Feb 1975 [20 Feb 1974] 6193/75 Heading E1J An openable window comprises a pane 1, 2 mounted in a sash 3 and a main frame 7 which has a projection 6 extending towards and substantially at right angles to the pane; a thermally insulating seal 8 is provided. The projection may be a separate plate 11 e.g. of plastics, a sub-sill 29 may be provided; these may be formed by a single piece 25. Condensate drainage holes may be provided and the plate may be arranged to direct an air current on to the pane.
Patent GB-608281-A (GB)
Title: Improvements in or relating to safety valves
IPC: F16K17/06
Filed: 1946-02-28
Abstract: 608,281. Safety valves. JUNIPER, A. T. Feb. 28, 1946, No. 6234. [Class 135] The tubular casing a of an air or gas safety valve for a pressure tank is closed by a cap k, at one end and formed at the other end with a threaded extension b for connection to the tank. A raised annular seating j, surrounding the inner end of an axial bore in the extension b, co-operates with an oil resistant pad h of, e.g. neoprene, to control the flow of air or gas to vent ports in the casing. The pad h is carried by a spring-loaded hexagonal holder g.
Patent GB-735475-A (GB)
Title: Improvements in or relating to wool presses
IPC: B30B9/30
Filed: 1953-03-06
Abstract: 735,475. Baling-presses. BETTS, R., and LAYCOCK, D. H. June 1, 1954 [March 6, 1953], No. 6254/53. Class 94 (1). The wool press has two boxes a, f capable of being filled separately and adapted to be superposed so that the whole of the wool in the two boxes may be compressed into a bale within the lower box a, there being two vertical screws g on opposite sides of the lower box a adapted to be rotated simultaneously in either direction without axial movement by an electric motor h, each of the screws g being threaded in a nut j at the lower end of a drag-rod k, n slidable vertically, the upper end of each drag-rod k, n having a hook or the like o capable of automatically engaging with the appropriate lug p on the presser head q when said nuts j are moved into their upper positions prior to pressing. The part n, of each drag-rod k, n is normally biased inwardly by a spring r, and the lugs p are so shaped that on upward movement of the drag-rods k, n the parts n move outwardly against the tension of the springs r on engaging the lugs p until the lugs p have been passed, whereafter the springs r pull the hooked part o of each drag-rod k, n over the lug p. The springs r are so mounted that, when required, each drag-rod k, n may be rocked through a deadcentre away from the presser head q into an inoperative position in which it is held by the action of the spring. Arms e, e are used to move the upper box f from a loading position (shown in broken lines), to its position on the lower box a.
Patent GB-271964-A (GB)
Title: Improvements relating to liquid receptacles
IPC: B65D25/50
Filed: 1926-03-06
Abstract: 271,964. Major & Co., Ltd., and Allison, E. B. March 6, 1926. Spouts.-A detachable pourer a for petrol, oil, &c. containers is provided at one end with a metal collar having a conical periphery b<1> adapted to engage with the conical or curved outlet opening c of the container. When not in use the pourer is reversed and is covered by the closure cap.
Patent GB-525708-A (GB)
Title: Improvements in and relating to flooring for roadway and like construction particularly for use in bridge decking
IPC: E01D19/12
Filed: 1939-02-27
Abstract: 525,708. Floors. BRAITHWAITE & CO. ENGINEERS, Ltd. (Braithwaite & Co. (India), Ltd.). Feb. 27, 1939, No. 6379. [Class 20 (iv)] [Also in Group V] Bridge-decking or like flooring consists of metal troughing, 1 with a filling of light-weight material such as timber 7, Fig. 1, or cellconcrete 8 with a normal concrete facing 9, Fig. 2, and a waterproof wearing surface 4. The latter may consist of a composition comprising rubber latex (1 part), aluminous cement powder (3 parts), dry coarse sand (3¢ parts) ; or rubber cement known under the Registered Trade Mark " Arranbee " with a filler of coarse sand or gravel. More timber filling is used for the troughs, these may be lined with a coating 6 of the surfacing-material.
Patent GB-1064100-A (GB)
Title: Improved photolithographic coating containing a diazonium salt
IPC: G03F7/021
Filed: 1965-02-16
Abstract: An aqueous solution comprises 0.1 to 4 weight per cent of a formaldehyde/diazotized p-aminodiphenylamine condensate in the form of a zinc chloride double salt and 0.1 to 1 part by weight of a polyvinyl alcohol, based on the condensate.